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Automatic grounding protector

A technology of automatic grounding and protector, applied in the direction of automatic disconnection emergency protection device, emergency protection circuit device, protection that reacts to the reverse of power transmission, etc.

Pending Publication Date: 2020-01-21
ANZE BRANCH OF SHANXI LOCAL POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide an automatic grounding protector to solve the technical deficiency of the low-voltage side users in the traditional power supply supplying power to the main grid

Method used

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  • Automatic grounding protector
  • Automatic grounding protector

Examples

Experimental program
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Effect test

Embodiment 1

[0014] Please also refer to figure 1 and figure 2 , an automatic grounding protector, comprising an input terminal 1, an output terminal 2 and a ground terminal 3 electrically connected to each other, the input terminal is connected in parallel with a voltmeter 4 and an AC coil 5, and also includes a first The switch group 6 and the second switch group 7. The input terminal is electrically connected to the output terminal through the first switch group, the input terminal is electrically connected to the ground terminal after passing through the first switch group and the second switch group in turn, and the output terminal is electrically connected to the ground terminal through the second switch group. connected, the first switch group is a normally open switch, and the second switch group is a normally closed switch. In addition, a third switch group 8 is connected in series at the output end, which is used to manage the on-off state of the electrical connection between ...

Embodiment 2

[0019] Please also refer to image 3 and Figure 4 , an automatic grounding protector, comprising an input terminal 1, an output terminal 2 and a ground terminal 3 electrically connected to each other, the input terminal is connected in parallel with a voltmeter 4 and an AC coil 5, and also includes a first The switch group 6 and the second switch group 7. The input terminal is electrically connected to the output terminal through the first switch group, the input terminal is electrically connected to the ground terminal after passing through the first switch group and the second switch group in turn, and the output terminal is electrically connected to the ground terminal through the second switch group. connected, the first switch group is a normally open switch, and the second switch group is a normally closed switch. In addition, a third switch group 8 is connected in series at the output end, which is used to manage the on-off state of the electrical connection between ...

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PUM

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Abstract

The invention discloses an automatic grounding protector. The protector comprises an input end, an output end and a grounding end which are electrically connected with each other. The input end is connected with a voltmeter and an alternating current coil in parallel. A first switch group and a second switch group which are linked with the alternating current coil are also included. The automaticgrounding protector is arranged at the foremost end of a low-voltage house, and when a main power grid normally supplies power, the automatic grounding protector can normally supply power to a user. When the main power grid is powered off, the low-voltage automatic grounding protector can be automatically disconnected with the main power grid through a change of an internal electric connection structure to form a mechanical disconnection point, and the output end of the protector and a user side equipment line are automatically grounded to achieve a protection effect. An accident that a low-voltage user side generates power by itself to supply power to the main power grid reversely is prevented.

Description

technical field [0001] The invention relates to a protector, in particular to an automatic grounding protector. Background technique [0002] With the development and progress of society, people rely more and more on power supply, and many residents start to use household generators to cope with power supply when the main grid is out of power. But not everyone who uses a generator is a professional, so it is not uncommon for reverse power supply accidents to occur. The staff in the early stage have carried out electrical inspection safety operations. It is too late to take reliable protective measures, and it is not uncommon to die from electric shock. This has also become a headache for the power industry. In this general background, people need a kind of automatic grounding protector to prevent similar things from happening. Contents of the invention [0003] The purpose of the present invention is to provide an automatic grounding protector to solve the technical def...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02H3/00
CPCH02H3/003
Inventor 郑海军
Owner ANZE BRANCH OF SHANXI LOCAL POWER CO LTD